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<title>Groovy Goodness: Tokenize a String</title>

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<h3 class="post-title">Groovy Goodness: Tokenize a String</h3>

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<p>Groovy adds the <code>tokenize()</code> method to the <code>String</code> class. We can use this method to split up a string value using a <code>String</code>, <code>char</code> or whitespace as delimiter. Groovy also adds a <code>split()</code> method without arguments that uses whitespace as delimiter, but returns a String array instead of List.</p>
<pre class="brush:groovy">
def s = 'one two three four'

def resultList = s.tokenize()
assert resultList.class.name == 'java.util.ArrayList'
assert ['one', 'two', 'three', 'four'] == resultList

def resultArray = s.split()
assert resultArray instanceof String[]
assert ['one', 'two', 'three', 'four'] == resultArray

def s1 = 'Java:Groovy'
assert ['Java', 'Groovy'] == s1.tokenize(":")
assert ['Java', 'Groovy'] == s1.tokenize(':' as char)
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